Even a slow Sunday gets its DOOM 3 post du jour, as there are a pair of previews
of the imminent shooter online this weekend (thanks Frans). There are previews
of the game on
GameSpot
and on IGN based on
getting to check it out at the G-Phoria deal from G4. Here's a bit from
GameSpot::

The Doom 3 demo station at G-Phoria didn't subject eager
attendees to the game's introductory segment, which is reportedly set before all
the hellish action picks up. In fact, our experience with Doom 3 started with
the second level of the game, at which time the nameless main character is
tasked with navigating the labyrinthine research base and briefly traversing the
Martian landscape in search of a missing scientist. Right about the time you
find this scientist, all hell breaks loose--literally--as a terrible presence
overruns the base and your former comrades begin to turn demonically against
you.